1212012312222 has 32 divisors (see below), whose sum is σ = 2502283843584. Its totient is φ = 390961576800.

The previous prime is 1212012312209. The next prime is 1212012312271. The reversal of 1212012312222 is 2222132102121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11027383 + ... + 11136749.

It is an arithmetic number, because the mean of its divisors is an integer number (78196370112).

Almost surely, 2^{1212012312222} is an apocalyptic number.

1212012312222 is an abundant number, since it is smaller than the sum of its proper divisors (1290271531362).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1212012312222 is a wasteful number, since it uses less digits than its factorization.

1212012312222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168984.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 1212012312222 its reverse (2222132102121), we get a palindrome (3434144414343).

The spelling of 1212012312222 in words is "one trillion, two hundred twelve billion, twelve million, three hundred twelve thousand, two hundred twenty-two".